Added back in clear and save buttons/links.
Changed filter input names and made some sneaky hidden element hacks.
group_by and display_sums now being passed to save query.

sorting not working but i'm not sure that it ever did.
Removed commented stuff.
Can now view work packages with pre configed filter.
Bug - removed filters no longer still showing in save query view.
Fix option value of empty group-by-option
Re-implemented old hack to get selected columns posting to query save.
Filters being displayed for preconfig queries.
Merge branch 'feature/ui-component-table-widgets-merged' into feature/ui-component-table-widgets-merged-filter-actions

Conflicts:
	app/assets/javascripts/angular/controllers/work-packages-controller.js
	app/assets/javascripts/angular/directives/work_packages/query-filter-directive.js
	app/assets/javascripts/angular/models/query.js
	app/views/work_packages/index.html.erb
	public/templates/work_packages/query_filters.html
	public/templates/work_packages/work_packages_options.html
Merge pull request #993 from opf/feature/ui-component-table-widgets-merged-filter-actions

Feature/ui component table widgets merged filter actions